Bettelheim, Bruno.
Violence: A Neglected Mode of Behavior . - Philadelphia-US : The american academy of political and social science, 1966. - páginas 50-59 : ilustraciones blanco y negro - Irregular - Vol. 364 (1966) - The annals of the American academy of political and social science ; . - The american academy of political and social science. .
Violence: A Neglected Mode of Behavior . - Philadelphia-US : The american academy of political and social science, 1966. - páginas 50-59 : ilustraciones blanco y negro - Irregular - Vol. 364 (1966) - The annals of the American academy of political and social science ; . - The american academy of political and social science. .